12th Class Chemistry Aldehydes, Ketones and Carboxylic Acids / ऐल्डिहाइड, कीटोन तथा कर्बोक्सिलिक अम्ल Question Bank 12th CBSE Chemistry Aldehydes, Ketones

  • question_answer
    Out of benzaldehyde and propionaldehyde which is more reactive towards nucleophilic addition?

    Answer:

                    Propionaldehyde is more reactive than benzaldehyde towards nucleophilic addition. Actually, in benzaldehyde the aldehydic group has -M (mesomeric) effect. As a result, the electron density on the carbonyl carbon atom tends to increase and the nucleophile attack is more difficult as compared to propionaldehyde where alkyl group is attached to the aldehydic group. For more details, consult section 13.8.


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